Difference between revisions of "1992 AJHSME Problems/Problem 11"
Math Kirby (talk | contribs) (Created page with "== Problem == The bar graph shows the results of a survey on color preferences. What percent preferred blue? <asy> for (int a = 1; a <= 6; ++a) { draw((-1.5,4*a)--(1.5,4*a...") |
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The total frequency is <math> 50+60+40+60+40=250 </math>, with the blue frequency of <math> 60 </math>. Therefore, the precentage that preferred blue is <math> \frac{60}{250}=\boxed{\text{(B)}\ 24\%} </math>. | The total frequency is <math> 50+60+40+60+40=250 </math>, with the blue frequency of <math> 60 </math>. Therefore, the precentage that preferred blue is <math> \frac{60}{250}=\boxed{\text{(B)}\ 24\%} </math>. | ||
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| + | ==See Also== | ||
| + | {{AJHSME box|year=1992|num-b=10|num-a=12}} | ||
| + | {{MAA Notice}} | ||
Latest revision as of 00:09, 5 July 2013
Problem
The bar graph shows the results of a survey on color preferences. What percent preferred blue?
![[asy] for (int a = 1; a <= 6; ++a) { draw((-1.5,4*a)--(1.5,4*a)); } draw((0,28)--(0,0)--(32,0)); draw((3,0)--(3,20)--(6,20)--(6,0)); draw((9,0)--(9,24)--(12,24)--(12,0)); draw((15,0)--(15,16)--(18,16)--(18,0)); draw((21,0)--(21,24)--(24,24)--(24,0)); draw((27,0)--(27,16)--(30,16)--(30,0)); label("$20$",(-1.5,8),W); label("$40$",(-1.5,16),W); label("$60$",(-1.5,24),W); label("$\textbf{COLOR SURVEY}$",(16,26),N); label("$\textbf{F}$",(-6,25),W); label("$\textbf{r}$",(-6.75,22.4),W); label("$\textbf{e}$",(-6.75,19.8),W); label("$\textbf{q}$",(-6.75,17.2),W); label("$\textbf{u}$",(-6.75,15),W); label("$\textbf{e}$",(-6.75,12.4),W); label("$\textbf{n}$",(-6.75,9.8),W); label("$\textbf{c}$",(-6.75,7.2),W); label("$\textbf{y}$",(-6.75,4.6),W); label("D",(4.5,.2),N); label("E",(4.5,3),N); label("R",(4.5,5.8),N); label("E",(10.5,.2),N); label("U",(10.5,3),N); label("L",(10.5,5.8),N); label("B",(10.5,8.6),N); label("N",(16.5,.2),N); label("W",(16.5,3),N); label("O",(16.5,5.8),N); label("R",(16.5,8.6),N); label("B",(16.5,11.4),N); label("K",(22.5,.2),N); label("N",(22.5,3),N); label("I",(22.5,5.8),N); label("P",(22.5,8.6),N); label("N",(28.5,.2),N); label("E",(28.5,3),N); label("E",(28.5,5.8),N); label("R",(28.5,8.6),N); label("G",(28.5,11.4),N); [/asy]](http://latex.artofproblemsolving.com/1/0/3/10387807c6182adb3b560fee12dfe2c6c74475be.png)
Solution
The total frequency is 
, with the blue frequency of 
. Therefore, the precentage that preferred blue is 
.
See Also
| 1992 AJHSME (Problems • Answer Key • Resources) | ||
| Preceded by Problem 10 |
Followed by Problem 12 | |
| 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 • 24 • 25 | ||
| All AJHSME/AMC 8 Problems and Solutions | ||
These problems are copyrighted © by the Mathematical Association of America, as part of the American Mathematics Competitions. 
